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Finding the Fourth Proportional to 366,811.20, 550,218.60 and 166,991.76

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Solution

The fourth proportional to 366,811.20, 550,218.60 and 166,991.76 is: 250,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,811.20 : 550,218.60 = 166,991.76 : x
  2. Step 2: Convert to fraction form
    366,811.20/550,218.60 = 166,991.76/x
  3. Step 3: Cross multiply
    366,811.20x = 550,218.60 × 166,991.76
  4. Step 4: Simplify right side
    366,811.20x = 91,881,972,398.74
  5. Step 5: Solve for x
    x = 91,881,972,398.74/366,811.20
  6. Step 6: Final answer
    x = 250,488.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.